Bosch 4 Amp-Hour; Lithium Battery in the Power Tool Batteries & Chargers department at Lowes.com
Bosch 2-Tool 18-volt Brushless Power Tool Combo Kit with Soft Case (2 Li-ion Batteries Included and Charger Included) in the Power Tool Combo Kits department at Lowes.com
Battery Guide | Bosch Car Service
Bosch - 18V Brushless 5" Random Orbit Sander Kit with 4.0 Ah CORE Compact Battery